WIP: save view configuration separately

Software/PC_Application/LibreVNA-GUI/VNA/vna.cpp

@@ -52,6 +52,7 @@
 #include <QScrollArea>
 #include <QStandardItemModel>
 #include <QDateTime>
+#include <QFileDialog>
 
 VNA::VNA(AppWindow *window, QString name)
     : Mode(window, name, "VNA"),
@@ -1749,6 +1750,60 @@ void VNA::preset()
     createDefaultTracesAndGraphs(DeviceDriver::getInfo(window->getDevice()).Limits.VNA.ports);
 }
 
+void VNA::saveView()
+{
+    auto filename = QFileDialog::getSaveFileName(nullptr, "Save VNA view data", "", "VNA view files (*.vnaview)", nullptr, QFileDialog::DontUseNativeDialog);
+    if(filename.isEmpty()) {
+        // aborted selection
+        return;
+    }
+    nlohmann::json j;
+    // only save data relevant to the view
+//    j["traces"] = traceModel.toJSON();
+    j["tiles"] = tiles->toJSON();
+    //    j["markers"] = markerModel->toJSON();
+
+    if(filename.toLower().endsWith(".vnaview")) {
+        filename.chop(8);
+    }
+    filename.append(".vnaview");
+    ofstream file;
+    file.open(filename.toStdString());
+    file << setw(1) << toJSON();
+}
+
+void VNA::loadView()
+{
+    auto filename = QFileDialog::getOpenFileName(nullptr, "Load VNA view data", "", "VNA view files (*.vnaview)", nullptr, QFileDialog::DontUseNativeDialog);
+    if(filename.isEmpty()) {
+        // aborted selection
+        return;
+    }
+
+    ifstream file;
+
+    file.open(filename.toStdString());
+    if(!file.good()) {
+        QString msg = "Unable to open file: "+filename;
+        InformationBox::ShowError("Error", msg);
+        qWarning() << msg;
+        return;
+    }
+
+    try {
+        nlohmann::json j;
+        file >> j;
+        if(j.contains("tiles")) {
+            tiles->fromJSON(j["tiles"]);
+        }
+    } catch(exception &e) {
+        InformationBox::ShowError("File parsing error", e.what());
+        qWarning() << "View file parsing failed: " << e.what();
+        return;
+    }
+
+}
+
 QString VNA::SweepTypeToString(VNA::SweepType sw)
 {
     switch(sw) {

Software/PC_Application/LibreVNA-GUI/VNA/vna.h

@@ -37,6 +37,8 @@ public:
     void setAveragingMode(Averaging::Mode mode) override;
 
     void preset() override;
+    void saveView() override;
+    void loadView() override;
 
     enum class SweepType {
         Frequency = 0,

Software/PC_Application/LibreVNA-GUI/appwindow.cpp

@@ -251,6 +251,14 @@ void AppWindow::SetupMenu()
         modeHandler->getActiveMode()->preset();
     });
 
+    connect(ui->actionSave, &QAction::triggered, [=](){
+        modeHandler->getActiveMode()->saveView();
+    });
+
+    connect(ui->actionLoad, &QAction::triggered, [=](){
+        modeHandler->getActiveMode()->loadView();
+    });
+
     connect(ui->actionPreferences, &QAction::triggered, [=](){
         // save previous SCPI settings in case they change
         auto &p = Preferences::getInstance();
@@ -392,7 +400,7 @@ bool AppWindow::ConnectToDevice(QString serial, DeviceDriver *driver)
 //            ui->actionReceiver_Calibration->setEnabled(true);
 //            ui->actionFrequency_Calibration->setEnabled(true);
 //        }
-        ui->actionPreset->setEnabled(true);
+//        ui->actionPreset->setEnabled(true);
 
         DeviceEntry e;
         e.serial = device->getSerial();
@@ -438,7 +446,7 @@ void AppWindow::DisconnectDevice()
     ui->actionSource_Calibration->setEnabled(false);
     ui->actionReceiver_Calibration->setEnabled(false);
     ui->actionFrequency_Calibration->setEnabled(false);
-    ui->actionPreset->setEnabled(false);
+//    ui->actionPreset->setEnabled(false);
     for(auto a : deviceActionGroup->actions()) {
         a->setChecked(false);
     }

Software/PC_Application/LibreVNA-GUI/main.ui

@@ -82,6 +82,8 @@
      <string>View</string>
     </property>
     <addaction name="actionPreset"/>
+    <addaction name="actionSave"/>
+    <addaction name="actionLoad"/>
    </widget>
    <addaction name="menuFile"/>
    <addaction name="menuDevice"/>
@@ -213,7 +215,7 @@
   </action>
   <action name="actionPreset">
    <property name="enabled">
-    <bool>false</bool>
+    <bool>true</bool>
    </property>
    <property name="text">
     <string>Preset</string>
@@ -232,6 +234,16 @@
     <string>Create Debug Data</string>
    </property>
   </action>
+  <action name="actionSave">
+   <property name="text">
+    <string>Save Graphs</string>
+   </property>
+  </action>
+  <action name="actionLoad">
+   <property name="text">
+    <string>Load Graphs</string>
+   </property>
+  </action>
  </widget>
  <resources>
   <include location="icons.qrc"/>

Software/PC_Application/LibreVNA-GUI/mode.h

@@ -46,6 +46,8 @@ public:
     virtual void setAveragingMode(Averaging::Mode mode) = 0;
 
     virtual void preset() = 0;
+    virtual void saveView() {};
+    virtual void loadView() {};
 
 signals:
     void statusbarMessage(QString msg);